. >> while i was there, the city was mourning the death of its first freely elected president, vaclav havel. in 1989, he helped lead the young country from communism to democracy. since the transition was peaceful, it's known as prague's velvet revolution. one thing you can't do in prague is lose track of time. clocks are everywhere, all shapes and sizes. in fact, the city is home to one of the oldest and most unusual clocks in the world. called an "astronomical clock," it dates back to 1410. it not only tells the time, it serves as a sort of planetarium. it shows the positions of the sun and moon, the month, sunrise and sunset, and much more. every hour, people gather to watch a mechanical show that has been running for hundreds of years. it begins with "the walk of the apostles" and ends with death tolling the hour. there's certainly not enough time in one report to show you all the sights. this is just a taste of a city i love. as they say in prague, na shledanou. that means "goodbye." for "teen kids news," i'm lauren. >> that's all for this week. thanks for joining us. >> we'll se